The Application of X-ray Sorting-Reverse Flotation in Phosphate Rock Beneficiation of Yichang Phosphor Layer Ore

LI Yuxin; TIAN Mengjie; QU Dingjun; HU Xuechao; SUN Wei; GAO Zhiyong

doi:10.13779/j.cnki.issn1001-0076.2020.06.008

2020 Vol. 40, No. 6

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LI Yuxin, TIAN Mengjie, QU Dingjun, HU Xuechao, SUN Wei, GAO Zhiyong. The Application of X-ray Sorting-Reverse Flotation in Phosphate Rock Beneficiation of Yichang Phosphor Layer Ore[J]. Conservation and Utilization of Mineral Resources, 2020, 40(6): 52-57. doi: 10.13779/j.cnki.issn1001-0076.2020.06.008

Citation:

LI Yuxin, TIAN Mengjie, QU Dingjun, HU Xuechao, SUN Wei, GAO Zhiyong. The Application of X-ray Sorting-Reverse Flotation in Phosphate Rock Beneficiation of Yichang Phosphor Layer Ore[J]. Conservation and Utilization of Mineral Resources, 2020, 40(6): 52-57. doi: 10.13779/j.cnki.issn1001-0076.2020.06.008

The Application of X-ray Sorting-Reverse Flotation in Phosphate Rock Beneficiation of Yichang Phosphor Layer Ore

1.
YiHua Mining Limited Compony of Hubei, Yichang 443100, Hubei, China
2.
School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, Hunan, China
3.
Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-containing Mineral Resources, Central South University, Changsha 410083, China

More Information

Corresponding author: TIAN Mengjie

Received Date: 25 September 2020

Publish Date: 25 December 2020

Abstract

Abstract

The P₂O₅ grade of Yichang middle phosphate rock is only about 22% on average, it is difficult to direct industrial use. Apatite and collophane are the main valuable P-containing minerals in Yichang ore. They have fine dissemination size of 0.03-0.5 mm. But they exists in the form of coarse-grained aggregate of P-containing minerals which can be used as separation objects. After ore of Yichang middle phosphate rock layer was screen, P₂O₅ grade in -10 mm class is about 26% which can be directly as feed of flotation. While the -30+10 mm class was treated using X-ray sorting technology, after that, phosphorus concentrate was obtained with P₂O₅ grade of more than 26% and recovery of 80%-86%. The -10 mm class products and X-ray sorting concentrate together feed into reverse flotation. Flotation concentrate with P₂O₅ grade of more than 32% was obtained eventually. The test results show that the X-ray sorting-reverse flotation process will show a good separation effect, in dealing with other similar low grade phosphate rock1 resources, and the combined process has great potential of popularization.
- Yichang middle phosphate layer /
- screening /
- X-ray sorting /
- preconcentration /
- reverse flotation

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References

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